Home / 315,451,771.80-435,347,009.28-181,530,739.32

Finding the Fourth Proportional to 315,451,771.80, 435,347,009.28 and 181,530,739.32

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Solution

The fourth proportional to 315,451,771.80, 435,347,009.28 and 181,530,739.32 is: 250,525,980.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,451,771.80 : 435,347,009.28 = 181,530,739.32 : x
  2. Step 2: Convert to fraction form
    315,451,771.80/435,347,009.28 = 181,530,739.32/x
  3. Step 3: Cross multiply
    315,451,771.80x = 435,347,009.28 × 181,530,739.32
  4. Step 4: Simplify right side
    315,451,771.80x = 79,028,864,455,349,296
  5. Step 5: Solve for x
    x = 79,028,864,455,349,296/315,451,771.80
  6. Step 6: Final answer
    x = 250,525,980.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.